It was long-rumoured to be a prequel to the events of Harry Potter and the Philosopher's Stone. Not so.

Harry Potter and the Cursed Child is actually a sequel. The eighth part of the story picks up where Deathly Hallows left off, 19 years on.

2. Harry Potter play reviews - what do the critics say

It seems like everyone loves Harry's stage outing. Digital Spy gave it five stars and said called it "a remarkably ambitious project" that "succeeds on almost every level" - and we weren't the only ones.

The Telegraph wrote: "The emotional climax is devastating even on paper. Once again, the fantasy world that Rowling created nearly 20 years ago is at its most powerful when it sets aside magic and reveals the basic, brutal and human mechanics of love and grief."

While the Hollywood Reporter writes: "The big problem is The Cursed Child is less an original story than a remix of the existing Potter mythology. The been there, done that feeling to the whole thing is its greatest weakness. "

11. What's the plot of Harry Potter and the Cursed Child?

It's a brand new tale about Harry and his THREE children - especially his son Albus.

"It was always difficult being Harry Potter and it isn't much easier now that he is an overworked employee of the Ministry of Magic, a husband and father of three school-age children," reads the blurb.

"While Harry grapples with a past that refuses to stay where it belongs, his youngest son Albus must struggle with the weight of a family legacy he never wanted. As past and present fuse ominously, both father and son learn the uncomfortable truth: sometimes, darkness comes from unexpected places."

13. Is Harry Potter and the Cursed Child a musical?

It's not a musical play, but there is music and Imogen Heap is doing it.

Answering the obvious question about why Harry Potter and the Cursed Child isn't the eighth Harry Potter novel, JK said: "I am confident that when audiences see the play they will agree that it was the only proper medium for the story."

As well as the 42-strong team on the stage, the crew has plenty of experienced talent involved.

Steve Hoggett (movement) has worked on The Twits, Let the Right One In and Black Watch among others. Christine Jones (set design) has done Let the Right One In and Spring Awakening over here and American Idiot on Broadway.

Katrina Lindsay (costumes) worked on stage adaptations of Bend It Like Beckham and American Psycho. Rounding out the gang are Neil Austin (lighting), Gareth Fry (sound) and Jeremy Chernick (special effects).

15. Will there be more Harry Potter stories?

"This is the next generation, you know. So, I'm thrilled to see it realised so beautifully but, no, Harry is done now."